MDEV-20638 Remove the deadcode from srv_master_thread() and srv_active_wake_master_thread_low()

- Due to commit fe95cb2e40d73adbbe88efa0e7f48c055ccd042f (MDEV-16125),
InnoDB master thread does not need to call srv_resume_thread()
and therefore there is no need to wake up the thread.
Due to the above patch, InnoDB should remove the following dead code.

srv_check_activity(): Makes the parameter as in,out and returns the
recent activity value

innobase_active_small(): Removed

srv_active_wake_master_thread(): Removed

srv_wake_master_thread(): Removed

srv_active_wake_master_thread_low(): Removed

Simplify srv_master_thread() and remove switch cases, added the assert.

Replace srv_wake_master_thread() with srv_inc_activity_count()

INNOBASE_WAKE_INTERVAL: Removed

1 files changed, 0 insertions, 6 deletions

diff --git a/extra/mariabackup/xtrabackup.cc b/extra/mariabackup/xtrabackup.cc
index b1120ba29f7..02d232b59d6 100644
--- a/extra/mariabackup/xtrabackup.cc
+++ b/extra/mariabackup/xtrabackup.cc
@@ -254,12 +254,6 @@ my_bool innobase_locks_unsafe_for_binlog;
 my_bool innobase_rollback_on_timeout;
 my_bool innobase_create_status_file;
 
-/* The following counter is used to convey information to InnoDB
-about server activity: in selects it is not sensible to call
-srv_active_wake_master_thread after each fetch or search, we only do
-it every INNOBASE_WAKE_INTERVAL'th step. */
-
-#define INNOBASE_WAKE_INTERVAL	32
 ulong	innobase_active_counter	= 0;